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Title: Green Extraction of Polyphenols from Olive Leaves using Ired-Irrad® as a Pretreatment
Authors: Abi khattar, Anna Maria
Rajha, Hiba N.
Maroun, Richard G.
Abdel-Massih, Roula
Louka, Nicolas
Debs, Esperance 
Affiliations: Department of Biology 
Department of Biology 
Keywords: Solvents
Subjects: Liquids
Energy consumption
Issue Date: 2020
Part of: 2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)
Start page: 1
End page: 5
Conference: International Conference on Renewable Energies for Developing Countries (REDEC) (5th : 29-30 June 2020 : Marrakech, Morocco) 
Maximization of polyphenols recovery from olive leaves by conventional water bath extraction was investigated using infrared irradiation as a pretreatment. A multivariate study enabled us to define the best experimental parameters for polyphenol extraction: 1:20 (w/v) for the solid to liquid ratio; 60°C and 75% ethanol/water. Untreated and infrared pretreated leaves were then subjected to the conventional extraction of polyphenols using the abovementioned conditions. A significant increase in both polyphenol yields and antiradical activities were shown subsequently to the infrared pretreatment of the leaves. This study concluded that IR pretreatment intensified the polyphenols extraction by varying different operative parameters such as temperature and IR exposure time.
Ezproxy URL: Link to full text
Type: Conference Paper
Appears in Collections:Department of Biology

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